Question

3 X 5 = 5 X 3 AND 3 +5 = 5 + 3 are the examples of .... *
which is the correct option
Additive property multiplication and addition
Associative property of multiplication and addition
Distributive property of multiplication and addition
Commutative property of multiplication and addition

Answer 1

Answer:

Step-by-step explanation:

Present age of:

Christopher = 42 yrs

Ishaan = 84 yrs

Explanation:

Solution:

Let present age of:

Christopher = x yrs

Ishaan = 2x yrs ( given that Ishaan is 2 times as old as Christopher)

35 yrs ago:

Age of Christopher = (x - 35)yrs

Age of Ishaan = (2x - 35) yrs

According to question, 35 yrs back, Ishaan was 7 times older than Christopher.

Therefore

7 X (x - 35) = (2x - 35)

7x - 245 = 2x - 35

7x - 2x = 245 - 35

5x = 210

x = 42

So present age of Christopher = x = 42 yrs

&

Present age of Ishaan = 2x = 84 yrs

Check your solution:

As 84 is 2 times of 42 so Ishaan is 2 times older than Christopher.

35 yrs ago, Christopher was (42 - 35) = 7 yrs old and Ishaan was (84 - 35) = 49 yrs old so Ishaan was 7 times older than Christopher then.

I hope it will help you ❤

Answer 2

Answer:

Commutative property of multiplication and addition